FAP screen blank/white
TASK 23-73-00-810-982-A
FAP screen blank/white
1. Possible Causes
2. Job Set-up Information
A. Referenced Information
3. Fault Confirmation
Subtask 23-73-00-710-407-A ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 23-73-00-810-799-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:26:05 UTC
FAP screen blank/white
1. Possible Causes
2. Job Set-up Information
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| ESPM 205221 | |
| ESPM 205222 | |
| AMM 23-73-00-740-005 | BITE-Test of the Cabin Intercommunication Data System (CIDS) through the CFDS |
| AMM 23-73-12-000-007 | Removal of the Flight Attendant Panel |
| AMM 23-73-12-400-007 | Installation of the Flight Attendant Panel |
| ASM 237323 | |
| AMM 23-73-34-000-001 | Removal of the CIDS Director |
| AMM 23-73-34-400-001 | Installation of the CIDS Director |
Subtask 23-73-00-710-407-A ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 23-73-00-810-799-A ** ON A/C NOT FOR ALL
A. If the test gives a different maintenance message, do the trouble shooting procedure related to the maintenance message.
Subtask 23-73-00-810-800-A ** ON A/C NOT FOR ALL B. If there is confirmation of the fault:
(1) Do a check if the FAP Power-up page shows before the blank/white screen:
(a) If the FAP Power-up page shows:
1 Do the test given in Para. 3.
(b) If the FAP Power-up page does not show:
1 Disconnect the connector A from the FAP [120RH] .
2 Do a check and repair the wiring from:
4 Do the test given in Para. 3.
(2) If the fault continues:
(a) Disconnect the connector A from the FAP [120RH] .
(b) Remove the DIR-CIDS, 1 [101RH] and DIR-CIDS, 2 [102RH] AMM 23-73-34-000-001.
(c) Do a check for continuity ESPM 205221, short circuit ESPM 205222 and correctly installed pins of the wirings from:
(e) Connect the connector A to the FAP [120RH] .
(f) Do the test given in Para. 3.
(3) If the fault continues:
(a) Replace the FAP [120RH] AMM 23-73-12-000-007 and AMM 23-73-12-400-007.
(b) Do the test given in Para. 3.
(1) Do a check if the FAP Power-up page shows before the blank/white screen:
(a) If the FAP Power-up page shows:
1 Do the test given in Para. 3.
(b) If the FAP Power-up page does not show:
1 Disconnect the connector A from the FAP [120RH] .
2 Do a check and repair the wiring from:
- FAP (120RH) connector A/18 and CB 170RH
- FAP (120RH) connector A/19 and CB 171RH
- FAP (120RH) connector A/20 and GND
- FAP (120RH) connector A/21 and GND
ASM 237323.
4 Do the test given in Para. 3.
(2) If the fault continues:
(a) Disconnect the connector A from the FAP [120RH] .
(b) Remove the DIR-CIDS, 1 [101RH] and DIR-CIDS, 2 [102RH] AMM 23-73-34-000-001.
(c) Do a check for continuity ESPM 205221, short circuit ESPM 205222 and correctly installed pins of the wirings from:
- DIR-CIDS, 1 (101RH) connector AB/14A and FAP (120RH) connector A/50
- DIR-CIDS, 2 (102RH) connector AB/14A and FAP (120RH) connector A/50
ASM 237323.
(e) Connect the connector A to the FAP [120RH] .
(f) Do the test given in Para. 3.
(3) If the fault continues:
(a) Replace the FAP [120RH] AMM 23-73-12-000-007 and AMM 23-73-12-400-007.
(b) Do the test given in Para. 3.